Feed production
Feed conversion efficiency
Production efficiency
Palatable/dry matter intake
Preservation/enhancement of feed value
Cost efficient
Safe – to animal, to operators, to community
Shelf life
Appearance
Limit Anti-nutritional factors
Meet composition requirements
Consistent
Particle size/separation
Avoid interactions
Antioxidant/anti-inflammatory action
Utilisation of alternative raw materials
Balanced ration (as fed)